[compiler-rt] r317369 - Late fixup in _lwp_exit on TSan/NetBSD

[Kamil Rytarowski via llvm-commits]

Author: kamil
Date: Fri Nov  3 14:08:52 2017
New Revision: 317369

URL: http://llvm.org/viewvc/llvm-project?rev=317369&view=rev
Log:
Late fixup in _lwp_exit on TSan/NetBSD

Call DestroyThreadState() before REAL(_lwp_exit)();

This variation is less racy.

Sponsored by <The NetBSD Foundation>


Modified:
    compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc?rev=317369&r1=317368&r2=317369&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_interceptors.cc Fri Nov  3 14:08:52 2017
@@ -2451,8 +2451,8 @@ TSAN_INTERCEPTOR(void *, __tls_get_addr,
 #if SANITIZER_NETBSD
 TSAN_INTERCEPTOR(void, _lwp_exit) {
   SCOPED_TSAN_INTERCEPTOR(_lwp_exit);
-  REAL(_lwp_exit)();
   DestroyThreadState();
+  REAL(_lwp_exit)();
 }
 #define TSAN_MAYBE_INTERCEPT__LWP_EXIT TSAN_INTERCEPT(_lwp_exit)
 #else